SECKET Long Range Detection Tests for Keadthe world-wide detection net operated by the Air Office of Atomic Qperation GREENHOUSE provided an excellent opportunity for testing s produced additional data which will be employed in the evaluation of atomic explosion quarters, United States Air Force. {t also permitted the gathering of much devices, and ground level filters, measurement of atmospheric shock waves by acoustic and conducted by foreign powers. By collection of bomb debris by airborne installed in aircraft, any ts, and detection of bomb debris by atmospheric conductivity apparatus measurement of shock waves in the earth's crust by seismic instrumen limits, descriptive as to location and yield. suspected atomic explosion is capable of verification and, within a s described above, with salaries and operating costs ac counting for one and Two million dollars were used in this program for the various tests and evaluation 1 up the balance. half million dollars and recording and measuring equipment making CHART OF ACCOUNTS 7.2 7.3. 7.6 Infrasonic Wave Propagation Studies Metecrologial Observations Program Collection of Bomb Debris from the Atmosphere at Ground Level 7.7 7.99 Seismic Wave Propagation Studies Common to Program ~